New Worksheet - Word Problems - Newton's Second Law - Part 4

Solve the following word problems using this formula: force = mass x acceleration

1. A 47-kg water-skier is being pulled by a speedboat. The force causes her to accelerate at 9 m/s^2. What is the force?
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2. How much force is needed to accelerate a 1200-kg elevator at 1.9 m/s^2?
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3. What is the force needed to accelerate a 14-kg cart at 5.5 m/s^2?
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4. Assume that a catcher in a professional baseball game exerts a force of 68.0 N to stop the ball. If the baseball has a mass of 0.213 kg, what is its acceleration as it is being caught?
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5. A 428 kg boat is sinking in the ocean. The force of gravity that draws the boat down is partially offset by the buoyant force of the water, so that the net unbalanced force on the boat is 3100 N. What is the acceleration of the boat?
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6. A house is lifted from its foundations onto a truck for relocation. The unbalanced force lifting the house is 2920 N. This force causes the house to move with an acceleration of 0.17 m/s2. What is the mass of the house?
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© 2018 Laura Glassel – lizzietutoring.blogspot.com

New Worksheet - Word Problems - Newton's Second Law - Part 3

Solve the following word problems using this formula: force = mass x acceleration

1. The tallest man-made structure at present is the Warszawa Radio mast in Warsaw, Poland, This radio mast rises 646 m above the ground, nearly 200 m more than the Sears Tower in Chicago. Suppose a worker at the top of the Warszawa Radio mast accidentally knocks a tool off the tower. If the force acting on it is 7.9 N, and its acceleration is 9.8 m/s^2, what is the tool’s mass?
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2. In drag racing, acceleration is more important than speed, and therefore drag racers are designed to provide high accelerations. Suppose a drag racer has a mass of 2510 kg and accelerates at a constant rate of 17.1 m/s^2. How large is the force acting on the racer?
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3. What net force is required to accelerate a car at a rate of 4.57 m/s^2 if the car has a mass of 5900 kg?
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4. A 8.65 kg bowling ball would require what force to accelerate down an alleyway at a rate of 7 m/s^2?
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5. Sally has a car that accelerates at 6.9 m/s^2. If the car has a mass of 1950 kg, how much force does the car produce?
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6. What is the mass of a truck if it produces a force of 81,000 N while accelerating at a rate of 9 m/s^2?
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© 2018 Laura Glassel – lizzietutoring.blogspot.com

New Worksheet - Word Problems - Finance Worksheet (II)

Word Problems – Finance Worksheet

Solve the following word problems.

1. Michael buys a ball for $7.00 and a flashlight for $5.73. How much does he spend?
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2. How much does Michael have left from $56 after making the purchases listed in number 1?
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3. The 22 children of a class bring in $2 each for a school trip. What is the total of the amount brought in?
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4. A set of 4 shelves can be made from a piece of wood 7 yards long. What fraction of a yard will each shelf be?
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5. Each of 5 children has $67. How much do they have altogether?
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6. If the above total (in number 5) were shared among 9 children, how much would each child have?
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7. A stamp album can hold 720 stamps. How many stamps will 7 albums hold?
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8. A train can take 302 passengers. How many can it take in four trips?
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9. Mr. Jenkins puts $826 a month into the bank. How much will he have put in after six months?
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10. A theater can seat 8365 people. If a play runs for 7 days, what is the maximum number of people who will be able to see it?
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11. A car costs $25,630. How much will it cost a company to buy nine cars for its salespeople?
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12. Installing a new window for a house costs $670. How much will it cost to install 8 windows of the same size?
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© 2018 Laura Glassel – lizzietutoring.blogspot.com

New Worksheet - Chemistry - Stoichiometry (II)

1. In the decomposition of 5.1 moles of nitrogen dioxide, how many moles of oxygen would be formed?
Answer: ________________

2. NH3 is formed by hydrogen and nitrogen reacting together. If you want to make 2.1 moles of NH3 , how many moles of hydrogen would you need?
Answer: ________________

3. 1.1 grams of CH4 reacts in a complete combustion reaction. How many grams of CO2 will there be?
Answer: ________________

4. 6.7 grams of P4O10 is formed through a formation reaction. How many grams of phosphorus will you need?
Answer: ________________

5. CuS decomposes into copper and sulfur. If you end up with 8.3 grams of sulfur, how many grams of CuS did you start with?
Answer: ________________


© 2018 Laura Glassel – lizzietutoring.blogspot.com

New Worksheet - Chemistry - Molarity (II)

Problem 1
Calculate the molarity of a 9.6 L solution made with 498 g of calcium chloride.
Answer: _______________________

Problem 2
How many grams of NaCl would be required to produce a 9.0 M solution with a volume of 1.4 L?
Answer: _______________________

Problem 3
How many grams of NaOH would be required to produce a 1.74 M solution with a volume of 3.77 L?
Answer: _______________________

Problem 4
How many grams of KCl would you need to weigh out to prepare 0.34 L of a 5.20 M KCl solution?
Answer: _______________________

Problem 5
Calculate the molarity of a 63.5 mL solution of 3.20 g NaCl.
Answer: _______________________

Problem 6
Calculate the volume in mL if you have 61.4 g of Na2CO3 from a 1.48 M solution.
Answer: _______________________

Problem 7
Calculate the volume in mL if you have 92.9 g LiOH from a 7.6 M solution.
Answer: _______________________

Problem 8
Calculate the final concentration if water is added to 0.592 L of a 4.16 M HCl solution to give a volume of 0.96 L.
Answer: _______________________

Problem 9
Calculate the final concentration if a 42.0 mL of a 1.3 M KCl solution is diluted with water to 0.32 L.
Answer: _______________________

Problem 10
Calculate the final concentration if water is added to 0.69 L of a 37.0 M KBr solution to give a volume of 3.00 L.
Answer: _______________________


© 2018 Laura Glassel – lizzietutoring.blogspot.com